Shockwave Therapy for Plantar Fasciitis: Does It Work?
At a Glance
- Shockwave therapy has Level 1 evidence (multiple randomized controlled trials) for plantar fasciitis, one of its strongest indications.
- Success rates for chronic plantar fasciitis range from 65 to 80 percent across published studies.
- Most protocols involve 3 to 5 sessions spaced one week apart, with improvement continuing for 8 to 12 weeks after treatment.
- Both focused and radial shockwave have demonstrated effectiveness, though focused ESWT has a longer evidence base.
- Shockwave is typically recommended after 6 months of conservative treatment (stretching, orthotics, physical therapy) have failed to resolve symptoms.
If you have been limping through your mornings for months, that searing pain in your heel the moment your foot hits the floor, you already know plantar fasciitis can be stubbornly resistant to treatment. You have probably tried stretching, ice, new shoes, orthotics, maybe a night splint. For many people, these conservative measures eventually work. But for a significant minority, they do not.
That is where extracorporeal shockwave therapy (ESWT) enters the picture. Among all the conditions treated with shockwave therapy, plantar fasciitis has arguably the strongest research support, backed by multiple randomized controlled trials, systematic reviews, and decades of clinical use. It is not a miracle cure, and it does not work for everyone. But for chronic plantar fasciitis that has resisted standard treatment, the evidence is genuinely encouraging.
Why Plantar Fasciitis Responds to Shockwave
Plantar fasciitis was originally understood as an inflammatory condition, hence the “-itis” suffix. But research over the past two decades has shifted that understanding. In most chronic cases, the tissue shows degenerative changes (collagen disorganization, thickening, neovascularization) rather than active inflammation. Some researchers prefer the term “plantar fasciosis” to reflect this.
This distinction matters because it explains why anti-inflammatory treatments (NSAIDs, cortisone injections) often provide only temporary relief in chronic cases, they are treating inflammation that may no longer be the primary problem.
Shockwave therapy works through a different mechanism entirely. The acoustic pressure waves delivered to the tissue trigger a cascade of biological responses:
- Neovascularization: New blood vessel formation in the degenerated tissue, improving nutrient supply and healing capacity.
- Stimulation of growth factors: Including VEGF, eNOS, and proliferating cell nuclear antigen, all of which support tissue repair.
- Disruption of pain signaling: Shockwaves can reduce substance P (a pain mediator) and desensitize nerve endings, providing analgesic effects.
- Breakdown of calcifications: When heel spurs or calcific deposits are present, shockwave energy can fragment them.
- Mechanical stimulation of fibroblasts: Encouraging collagen remodeling and repair of the degenerated fascia.
In short, shockwave therapy addresses the degenerative pathology of chronic plantar fasciitis rather than simply masking pain. This is one reason why improvements often continue for weeks to months after treatment ends, the biological healing process has been initiated, not just a symptom suppressed.
Focused vs. Radial Shockwave for Plantar Fasciitis
There are two main types of shockwave used clinically, and both have been studied for plantar fasciitis:
Focused ESWT (fESWT) generates high-energy pressure waves that converge at a specific depth in the tissue. It penetrates deeper and delivers energy more precisely to the target area. The original shockwave research for plantar fasciitis used focused devices, and this modality has the longest evidence base. Focused ESWT devices are more expensive and are more commonly found in hospitals, orthopedic clinics, and specialized treatment centers.
Radial pressure wave therapy (rSWT) generates waves that disperse outward from the applicator tip, affecting a broader but shallower area. Radial devices are less expensive, more widely available (many physical therapy and chiropractic offices have them), and the treatments are generally less intense. Multiple studies have shown radial shockwave to be effective for plantar fasciitis as well, though some researchers consider the evidence slightly less strong than for focused ESWT.
What the Research Shows: Success Rates and Outcomes
The evidence for shockwave therapy in plantar fasciitis is substantial. Here are the key findings from the literature:
A 2017 systematic review and meta-analysis published in the British Medical Bulletin analyzed 12 randomized controlled trials and found that ESWT significantly reduced pain compared to placebo, with benefits maintained at 12 weeks and beyond. The overall success rate across studies ranged from approximately 65 to 80 percent, defined as at least 60 percent pain reduction or a rating of “good” or “excellent” by the patient.
A landmark 2015 RCT in the Journal of Orthopedic Research compared focused ESWT to placebo in 250 patients with chronic plantar fasciitis (duration greater than 6 months). The ESWT group showed significantly greater pain reduction on the Visual Analog Scale at 12 weeks, with 60 percent of treated patients achieving at least 60 percent pain relief compared to 42 percent in the placebo group.
Multiple studies have shown that the improvements from shockwave therapy are durable. Follow-ups at 6 months and 12 months typically show maintained or continued improvement, unlike cortisone injections, which often show benefit at 4 weeks but regression by 3 to 6 months.
Typical Treatment Protocol
While protocols vary between practitioners and devices, a typical shockwave treatment protocol for plantar fasciitis looks like this:
Number of sessions: 3 to 5, sometimes up to 6 for resistant cases.
Frequency: Once per week (some protocols use every 5 to 10 days).
Pulses per session: 1,500 to 3,000 for radial; 1,000 to 2,500 for focused.
Energy level: Medium to high energy settings, adjusted based on patient tolerance and tissue response. Many practitioners start at lower energy in the first session and increase progressively.
Treatment area: The point of maximal tenderness (usually the medial calcaneal tubercle where the fascia inserts on the heel bone) and the proximal plantar fascia.
Session duration: 10 to 20 minutes for the shockwave application itself.
Pain during treatment: Expect moderate discomfort. Shockwave therapy for plantar fasciitis is not painless, most patients describe it as a deep, thumping pressure with intermittent sharp sensations at the point of maximal tenderness. The discomfort is tolerable for most people and the session is relatively short. Some practitioners use a mild topical anesthetic or cold application beforehand, though this is debated (some research suggests the pain response may actually contribute to the therapeutic effect).
After treatment: You can usually walk immediately, though the heel may be sore for 24 to 48 hours. Most practitioners recommend avoiding high-impact activities (running, jumping) for 48 to 72 hours after each session. Continue stretching and any other conservative measures during the treatment course.
When Should You Try Shockwave for Plantar Fasciitis?
Most clinical guidelines and insurance frameworks recommend shockwave therapy for plantar fasciitis when conservative treatments have been tried for at least 6 months without adequate resolution. This does not mean you must suffer for exactly six months, it means shockwave is positioned as a second-line treatment after standard approaches have had a fair trial.
Conservative measures that should typically be tried first include:
- Stretching (calf stretches, plantar fascia-specific stretches)
- Supportive footwear and orthotics
- Activity modification
- Physical therapy
- Night splints
- Ice and NSAIDs for pain management
Some progressive practitioners are beginning to consider shockwave earlier in the treatment timeline, particularly when imaging (ultrasound) shows significant fascial thickening or degenerative changes that are unlikely to respond to conservative treatment alone. This “earlier intervention” approach is gaining traction but is not yet standard practice.
Shockwave vs. Other Treatments for Plantar Fasciitis
How does shockwave stack up against other treatment options? Here is a comparison based on available evidence:
| Treatment | Evidence Level | Success Rate | Duration of Benefit | Key Considerations |
|---|---|---|---|---|
| Shockwave therapy (ESWT) | Level 1 (multiple RCTs) | 65 to 80% | Long-term (12+ months) | Non-invasive; addresses tissue pathology; 3 to 5 sessions |
| Cortisone injection | Level 1 | 50 to 70% (short-term) | Short-term (4 to 12 weeks) | Fast relief; risks fascial rupture; diminishing returns with repeat injections |
| PRP injection | Level 2 (some RCTs) | 70 to 85% | Medium to long-term | Regenerative; 1 to 2 injections; more expensive; variable PRP preparation |
| Surgery (fasciotomy) | Level 2-3 | 70 to 90% | Long-term | Invasive; 6 to 12 week recovery; risk of complications; last resort |
| Physical therapy + stretching | Level 1 | 60 to 80% | Long-term (if maintained) | First-line treatment; requires consistency; low risk |
| Orthotics | Level 2 | 50 to 70% | Long-term (while wearing) | Supportive, not curative; works well in combination with other therapies |
A few things stand out in this comparison. Cortisone provides faster initial relief but tends to lose effectiveness over time and carries a real risk of fascial weakening or rupture with repeated injections. Shockwave takes longer to show results (improvements typically appear 4 to 8 weeks into treatment and continue improving for months) but produces more durable outcomes. PRP is promising but has less standardized preparation and fewer large trials. Surgery works but carries all the risks and recovery time of a surgical procedure and is reserved for the most refractory cases.
Many experienced practitioners now view shockwave therapy as the logical next step after conservative measures fail, before considering injections or surgical referral.
What to Expect: A Patient Walkthrough
Here is what a typical course of shockwave treatment for plantar fasciitis looks like from the patient perspective:
Session 1: Your practitioner will locate the point of maximal tenderness on your heel (usually by palpation and sometimes confirmed with ultrasound). They apply coupling gel and begin delivering shockwave pulses, starting at lower energy and increasing based on your feedback. You will feel deep thumping with occasional sharp pain at the tender spot. The session takes 10 to 20 minutes. Afterward, your heel may feel bruised or sore for a day or two.
Sessions 2 through 4: Energy levels are typically increased progressively. Many patients notice that the point of maximal tenderness begins to shift or decrease in intensity by the third session. Some people report improvement in morning pain by this point; others do not notice changes until after the treatment course is complete.
Weeks 4 through 12 after final session: This is when the biological healing response is actively remodeling the fascia. Most patients see their greatest improvements during this period. Morning pain typically decreases first, followed by reduction in activity-related pain.
3 to 6 months post-treatment: The full benefit is usually apparent by this point. If pain has reduced by 60 percent or more, the treatment is considered successful. Some patients achieve complete resolution; others retain a low level of symptoms that is manageable.
Cost and Insurance Coverage
The cost of shockwave therapy for plantar fasciitis varies depending on your location, the type of device used, and the provider. Typical ranges:
- Radial shockwave: $100 to $250 per session
- Focused ESWT: $200 to $500 per session
- Total treatment course (3 to 5 sessions): $400 to $2,000
Insurance coverage for ESWT varies widely. Some insurers cover focused ESWT for plantar fasciitis (particularly after documented failure of conservative treatment), while many consider it “experimental” and deny coverage. Radial shockwave is often coded as part of a physical therapy visit, which may have different coverage implications. Always verify coverage with your insurer before starting treatment.
Frequently Asked Questions
How many shockwave sessions do I need for plantar fasciitis?
The standard protocol is 3 to 5 sessions, typically spaced one week apart. Some practitioners may recommend up to 6 sessions for particularly stubborn cases. Research suggests that 3 sessions is often sufficient, with diminishing additional benefit beyond 5 sessions. If you have not experienced any improvement by the end of 5 sessions, additional shockwave treatments are unlikely to help, and alternative approaches should be considered.
Can shockwave therapy make plantar fasciitis worse?
Temporary worsening of pain is common in the first 24 to 48 hours after each session, this is part of the normal inflammatory response triggered by the treatment. True, lasting worsening of the condition from shockwave therapy is rare. The treatment is non-invasive and does not carry the tissue-damage risks associated with cortisone injections or surgery. However, if pain significantly worsens and does not settle within a few days, contact your practitioner.
Does shockwave therapy work for heel spurs?
Heel spurs and plantar fasciitis frequently coexist, and shockwave therapy has been shown to benefit both conditions. However, it is important to understand that heel spurs themselves are often not the primary source of pain, the fascial degeneration and inflammation at the insertion point is. Shockwave can help fragment calcific deposits in some cases, but the primary therapeutic benefit comes from its effects on the soft tissue pathology. Many people with heel spurs on X-ray are completely pain-free, so the spur itself is often an incidental finding.
Can I run or exercise during shockwave treatment for plantar fasciitis?
Most practitioners recommend avoiding high-impact activities (running, jumping, prolonged standing) for 48 to 72 hours after each session to allow the acute inflammatory response to settle. Between sessions, gentle to moderate activity is usually fine, walking, swimming, cycling. Your practitioner will provide specific guidance based on your severity. Continuing a calf-stretching and plantar fascia stretching program throughout treatment is generally encouraged.
Related Reading
This article is part of our complete guide to shockwave therapy. For a complete overview, including how shockwave works, its applications beyond plantar fasciitis, and how to find a qualified provider, see our pillar article: Shockwave Therapy: The Complete Guide.
